glGetShaderInfoLog3GglGetShaderInfoLogreturn the information log for a shader objectC Specificationvoid glGetShaderInfoLogGLuint shaderGLsizei maxLengthGLsizei *lengthGLchar *infoLogParametersshaderSpecifies the shader object whose information
log is to be queried.maxLengthSpecifies the size of the character buffer for
storing the returned information log.lengthReturns the length of the string returned in
infoLog (excluding the null
terminator).infoLogSpecifies an array of characters that is used
to return the information log.DescriptionglGetShaderInfoLog returns the
information log for the specified shader object. The information
log for a shader object is modified when the shader is compiled.
The string that is returned will be null terminated.glGetShaderInfoLog returns in
infoLog as much of the information log as
it can, up to a maximum of maxLength
characters. The number of characters actually returned,
excluding the null termination character, is specified by
length. If the length of the returned
string is not required, a value of NULL can
be passed in the length argument. The
size of the buffer required to store the returned information
log can be obtained by calling
glGetShaderiv
with the value GL_INFO_LOG_LENGTH.The information log for a shader object is a string that
may contain diagnostic messages, warning messages, and other
information about the last compile operation. When a shader
object is created, its information log will be a string of
length 0.NotesThe information log for a shader object is the OpenGL
implementer's primary mechanism for conveying information about
the compilation process. Therefore, the information log can be
helpful to application developers during the development
process, even when compilation is successful. Application
developers should not expect different OpenGL implementations to
produce identical information logs.ErrorsGL_INVALID_VALUE is generated if
shader is not a value generated by
OpenGL.GL_INVALID_OPERATION is generated if
shader is not a shader object.GL_INVALID_VALUE is generated if
maxLength is less than 0.Associated GetsglGetShaderiv
with argument GL_INFO_LOG_LENGTHglIsShaderSee AlsoglCompileShader,
glGetProgramInfoLog,
glLinkProgram,
glValidateProgramCopyright
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